Add snapshot yaml files and volume clone

capabilities to provisioner.

Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>

examples/rbd/pod-restore.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: csirbd-restore-demo-pod
+spec:
+  containers:
+   - name: web-server
+     image: nginx 
+     volumeMounts:
+       - name: mypvc
+         mountPath: /var/lib/www/html
+  volumes:
+   - name: mypvc
+     persistentVolumeClaim:
+       claimName: rbd-pvc-restore
+       readOnly: false
+

examples/rbd/pvc-restore.yaml

@@ -0,0 +1,16 @@
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: rbd-pvc-restore
+spec:
+  storageClassName: csi-rbd
+  dataSource:
+    name: rbd-pvc-snapshot
+    kind: VolumeSnapshot
+    apiGroup: snapshot.storage.k8s.io
+  accessModes:
+    - ReadWriteMany
+  resources:
+    requests:
+      storage: 1Gi

examples/rbd/snapshot.yaml

@@ -0,0 +1,9 @@
+apiVersion: snapshot.storage.k8s.io/v1alpha1
+kind: VolumeSnapshot
+metadata:
+  name: rbd-pvc-snapshot
+spec:
+  snapshotClassName: csi-rbdplugin-snapclass
+  source:
+    name: rbd-pvc
+    kind: PersistentVolumeClaim

examples/rbd/snapshotclass.yaml

@@ -0,0 +1,11 @@
+---
+apiVersion: snapshot.storage.k8s.io/v1alpha1
+kind: VolumeSnapshotClass
+metadata:
+  name: csi-rbdplugin-snapclass
+snapshotter: csi-rbdplugin
+parameters:
+  pool: rbd
+  monitors: mon1:port,mon2:port,...
+  csi.storage.k8s.io/snapshotter-secret-name: csi-rbd-secret
+  csi.storage.k8s.io/snapshotter-secret-namespace: default